Instruction Manual

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2. Installation - Tee Fitting

The Signet 2650 Amperometric Electronics provide the polarization voltage and signal conditioning required by all Signet

Amperometric Sensors. Sophisticated circuitry makes system setup and veriﬁ cation easy.

Features:

• Passes data stored in sensor memory, such as factory calibration data, service time, range and more.

• Signet's patented DryLoc

connector provides quick assembly and a secure connection. Gold-plated contacts and an O-ring seal

ensure a waterproof and reliable interconnect to the sensor.

• Separate drive electronics from sensor make for easy sensor replacement without running new cable.

• DryLoc connectivity allows easy sensor removal for calibration.

Signet 2650 DryLoc

Amperometric Electronics

3-2650.090 Rev. F 05/11 English

English

CAUTION!

• Remove power before wiring input or output connections.

• Follow instructions carefully to avoid personal injury or damage

to the electronics.

1. Description

Align the 2650 Electronics with

the pins on the sensor. Engage

it by gently turning the lock ring

¼-turn counter-clockwise.

Install the yellow nut on to the ﬁ tting

and hand tighten. Do Not Use Tools.

Do Not Use Lubricant or Sealing Tape on Threads.

Do Not Overtighten.

4630 Flow Cell Installation

The bottom yellow nut is

not used when using the 2650

electronics with the Signet 4630

ﬂ ow cell.

Signet 4630

ﬂ ow cell

3-2650.090

Insert sensor fully into ﬁ tting. Align

tab on sensor with notch on ﬁ tting.

Lubricate O-rings with a viscous,

non-petroleum based lubricant

(grease) compatible with the

system.

CHEMICAL COMPATIBILITY WARNING

The retaining nuts of Amperometric sensors are not designed for prolonged contact with aggressive substances. Strong

acids, caustic substances and solvents or their vapor may lead to failure of the retaining nut, ejection of the sensor and

loss of the process ﬂ uid with possibly serious consequences, such as damage to equipment and serious personal injury.

Retaining nuts that may have been in contact with such substances, e.g. due to leakage or spilling, must be replaced.

Summary of content (2 pages)

PAGE 1
Signet 2650 DryLoc® Amperometric Electronics 3-2650.090 English 3-2650.090 Rev. F 05/11 English CAUTION! • Remove power before wiring input or output connections. • Follow instructions carefully to avoid personal injury or damage to the electronics. 1. Description The Signet 2650 Amperometric Electronics provide the polarization voltage and signal conditioning required by all Signet Amperometric Sensors. Sophisticated circuitry makes system setup and verification easy.
PAGE 2
3. Wiring Chlorine Digital (S3L) Wiring • Remove approximately 10 mm (0.4 in.) of insulation and tin each conductor before inserting into terminals. White Red Black 15 14 13 Signal Ground Digital (S3L) data +5 VDC Gnd I/O V+ Shield • • • • Refer to the wiring diagram above to connect the 2650 cable to the terminals on the 8630 Chlorine Transmitter. Maximum cable length is 30 m (100 ft). Cable should have noise immunity for the sensor signal of up to 30 m (100 ft).